The answer is C. It is naturally occurring
A filter is a device that can reduce particulate in gaseous emissions from mobile exhausts. Specifically known as diesel particulate filter (DPF) removes soot from gasses of the diesel engine through the exhaust. It significantly reduces the amount of pollutants present in the air.
Answer:
B) Is Chemically Specific
Explanation:
1,665 is your answer because 19x19=q qx14=a
